Patents Assigned to Alfa Laval Corporate AB
  • Publication number: 20200078750
    Abstract: The present invention provides method for separating contaminants from a liquid mixture comprising the steps of a) providing a feed of said liquid mixture to be purified, b) adding a separation aid to the liquid mixture to be purified, wherein said separation aid is capable of binding said contaminants and c) supplying a flow of compressed air into said feed after step b) has been performed to provide a feed comprising air. The method further comprises steps d) removing air from said feed comprising air to provide a deaerated feed; and e) supplying said deaerated feed to a separator, and f) separating a phase comprising contaminants and said separation aid from said liquid mixture in said separator, wherein the separation aid added in step b) is insoluble in said liquid mixture at the separation conditions in step f). The present invention further provides a system for separating contaminants from a liquid mixture.
    Type: Application
    Filed: December 1, 2017
    Publication date: March 12, 2020
    Applicant: ALFA LAVAL CORPORATE AB
    Inventors: Per-Gustaf LARSSON, Ami KARLSSON
  • Patent number: 10576587
    Abstract: The present invention relates to a blend of at least one phosphorous source and at least one silicon source, wherein silicon and phosphorous together are present in the blend in at least 25 wt %, and wherein the blend is a mechanical blend of powders, wherein each particle in the blend is either a phosphorous source particle or a silicon source particle. The present invention relates further to a composition comprising the blend a substrate applied with the blend, a method for providing a brazed product, and uses.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: March 3, 2020
    Assignee: ALFA LAVAL CORPORATE AB
    Inventors: Per Sjödin, Kristian Walter, Fredrik Falkenberg
  • Patent number: 10544998
    Abstract: An attachment member is arranged to engage an edge portion of a heat exchanger plate for fastening a gasket to a first side of the heat exchanger plate. It comprises a first connection member, a second connection member and a bridge. A first part of the first connection member is arranged to engage the gasket while a second part of the first connection member engages the bridge. A first part of the second connection member is arranged to engage the gasket while and a second part of the second connection member engages with the bridge. The attachment member further comprises a plurality of fingers arranged between the first and second connection members. A respective connection part of each finger engages the bridge and the fingers are arranged to extend from the bridge towards the gasket.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: January 28, 2020
    Assignee: ALFA LAVAL CORPORATE AB
    Inventors: Magnus Hedberg, Johan Nilsson
  • Publication number: 20200025453
    Abstract: A heat exchanger plate for use in a plate package for a heat exchanger device is disclosed. The plate has a geometrical main extension plane (q) and a circumferential edge portion, the circumferential edge portion having a curved upper portion, a substantially straight lower portion and two opposing side portions interconnecting the upper and the lower portions. An upper porthole is arranged in an upper section of the heat exchanger plate and located at a distance from the upper portion of the circumferential edge portion thereby defining an upper intermediate portion. The upper intermediate portion includes the shortest distance (d2) between a centre of the upper porthole and the upper portion of the circumferential edge portion. The heat exchanger plate further comprises an upper flange having an extension along the upper portion of the circumferential edge portion.
    Type: Application
    Filed: February 15, 2018
    Publication date: January 23, 2020
    Applicant: ALFA LAVAL CORPORATE AB
    Inventors: Anders SKOGLÖSA, Per SJÖDIN
  • Publication number: 20200016610
    Abstract: A seal assembly for providing a seal between a first zone and a second zone includes a rotatable sealing member including a first sealing ring, a stationary sealing member including a second sealing ring and a device for bringing the first and second sealing rings into engagement with each other. The first and second sealing rings are arranged so that a double contact seal having at least one chamber arranged at a radial plane is formed upon engagement between the first and second sealing rings. The seal assembly further includes at least one fluid connection to the chamber. A centrifugal separator includes such a seal assembly.
    Type: Application
    Filed: March 15, 2018
    Publication date: January 16, 2020
    Applicant: ALFA LAVAL CORPORATE AB
    Inventors: Klas HILDING, Jouko PITKÄMÄKI, Peter THORWID, Anders EKSTRÖM
  • Patent number: 10532365
    Abstract: A centrifugal separator for cleaning gas containing liquid impurities includes a stationary casing, enclosing a separation space through which a gas flow is permitted. The stationary casing includes a surrounding side wall, a first end wall and a second end wall. An inlet extends through the stationary casing and permits supply of the gas to be cleaned. A rotating member includes a stack of separation disks rotatable around an axis of rotation. A drive member rotates the rotating member. A gas outlet permits discharge of cleaned gas, and includes an outlet opening through the side wall. A drainage outlet permits discharge of liquid impurities separated from the gas. The outlet opening is positioned opposite to the stack of separation disks.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: January 14, 2020
    Assignee: ALFA LAVAL CORPORATE AB
    Inventor: Thomas Eliasson
  • Patent number: 10533473
    Abstract: A system for treating engine exhaust gas, which engine exhaust gas has a temperature of between T1 and T2, comprises a SCR reactor for converting NOx in a medium containing the engine exhaust gas into N2 and H2O. The SCR reactor has an inlet for receiving the medium and an outlet for outputting the NOx reduced medium. A first boiler unit has an outlet for outputting boiler exhaust gas (temperature greater than T3, T3>T1) from the first boiler unit. A mixing unit mixes the engine exhaust gas with the boiler exhaust gas to produce the medium. The mixing unit has a first inlet communicating with the engine for receiving the engine exhaust gas, a second inlet communicating with the outlet of the first boiler unit for receiving the boiler exhaust gas and an outlet for outputting the medium. The mixing unit outlet communicates with the inlet of the SCR reactor.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: January 14, 2020
    Assignee: ALFA LAVAL CORPORATE AB
    Inventors: Søren Mølgaard, Kenneth Christensen
  • Publication number: 20200003503
    Abstract: A syngas loop boiler includes a casing that surrounds a tube bundle, wherein the tube bundle includes a plurality of tubes. One end of each of the tubes is joined to a tube-sheet provided with corresponding tube-sheet inlet holes for inletting the syngas in the boiler, wherein each tube-sheet inlet hole is internally provided with at least a protective sleeve welded at both ends to corresponding surfaces of the tube-sheet inlet hole. Each tube-sheet inlet hole is provided with a first respective weld overlay placed at the inlet mouth of the tube-sheet inlet hole, so that a first end of each protective sleeve is welded to the first weld overlay. Each tube-sheet inlet hole is internally provided with at least a bore groove that contains a respective in-bore second weld overlay, so that the second end of the protective sleeve is welded to the in-bore second weld overlay.
    Type: Application
    Filed: January 18, 2018
    Publication date: January 2, 2020
    Applicant: ALFA LAVAL CORPORATE AB
    Inventors: Marco COLOMBO, Silvio SARTI
  • Publication number: 20190390923
    Abstract: A connector, a gasket arrangement, a heat exchanger plate and an assembly are provided. The connector is arranged to engage with an edge portion of the heat exchanger plate for fastening a gasket to a first side of the heat exchanger plate. The connector includes a first connection member, a second connection member and a bridge. A first part of the first connection member is arranged to engage with the gasket and a second part of the first connection member engages with the bridge. A first part of the second connection member is arranged to engage with the gasket and a second part of the second connection member engages with the bridge. The connector includes a finger arranged between the first and second connection members, a connection part of the finger engaging which the bridge and the finger being arranged to extend from the bridge towards the gasket.
    Type: Application
    Filed: September 6, 2019
    Publication date: December 26, 2019
    Applicant: ALFA LAVAL CORPORATE AB
    Inventor: Jenny RASMUSSEN
  • Patent number: 10512919
    Abstract: A centrifugal separator for cleaning a gas containing liquid impurities includes a stationary casing, enclosing a separation space and a surrounding side wall, a first end wall and a second end wall. An inlet extends through the stationary casing and permits supply of the gas to be cleaned. A rotating member includes a stack of separation disks rotatable around an axis of rotation by means of a drive member. A gas outlet permits discharge of cleaned gas and comprises an outlet opening through the stationary casing and an upstream portion extending from the outlet opening. A drainage outlet permits discharge of liquid impurities separated from the gas. The drainage outlet is provided in the gas outlet downstream the upstream portion. The gas outlet conveys the liquid impurities to the drainage outlet.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: December 24, 2019
    Assignee: ALFA LAVAL CORPORATE AB
    Inventor: Thomas Eliasson
  • Patent number: 10514066
    Abstract: A centrifugal separator includes a frame and a drive member configured to rotate a rotating part in relation to the frame around an axis of rotation. The rotating part includes a centrifuge rotor enclosing a separation space. The centrifuge rotor is adjoined to a hollow spindle supported by the frame by at least one bearing device. The interior of the hollow spindle is in thermal contact with the at least one bearing device and further includes a thermal transfer medium inlet for supplying a thermal transfer medium to said interior and a thermal transfer medium outlet for withdrawing the thermal transfer medium from the interior; and directing mechanism for directing thermal transfer medium from the thermal transfer medium inlet to the thermal transfer medium outlet in a first direction along the length of the spindle and in a second direction along the length of the spindle. The second direction is opposite the first direction.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: December 24, 2019
    Assignee: ALFA LAVAL CORPORATE AB
    Inventors: Kasper Höglund, Peter Thorwid
  • Publication number: 20190383565
    Abstract: The disclosure relates to a header connected to or formed as a part of a heat exchanger. The heat exchanger has a heat exchanger body with a plurality of discrete channels for a first fluid and a plurality of discrete channels for a second fluid. The header has a first end having a round configuration and a second end being provided with a plurality of discrete channels. The header is provided with a plurality of dividers dividing one or more internal channels of the circular pipe into the plurality of discrete channels at the second end. At least some of the dividers extend from the second end to the first end and define a plurality of channel mouths at the first end. The disclosure also relates to a heat exchanger.
    Type: Application
    Filed: November 28, 2017
    Publication date: December 19, 2019
    Applicant: ALFA LAVAL CORPORATE AB
    Inventors: Fredrik STRÖMER, Kristian WALTER
  • Patent number: 10508869
    Abstract: A method and a control unit for evaluating lifting force of a gas phase of a substantially vertical upward two-phase flow of a first fluid in a heat exchanger. The first fluid comprises the gas phase and a liquid phase. The method comprises determining that the lifting force of the gas phase is insufficient for lifting the liquid phase based on hot end approach of the heat exchanger and/or on pressure drop of the first fluid over the heat exchanger. The control unit is configured to determine that the lifting force of the gas phase is insufficient for lifting the liquid phase based on hot end approach of the heat exchanger and/or on pressure drop of the first fluid over the heat exchanger. A heat exchanger assembly comprising a heat exchanger and the control unit.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: December 17, 2019
    Assignees: ALFA LAVAL CORPORATE AB, ALFA LAVAL PACKINOX
    Inventor: Laure Guichard
  • Publication number: 20190368829
    Abstract: The disclosure concerns a heat exchanger comprising a heat exchanger core having a first heat exchange passage for a first working fluid intended to be involved in a heat exchange process, and a second heat exchange passage for a second working fluid intended to be involved in the heat exchange process. The heat exchanger further has a header comprising a duct for conveying working fluid to or from at least one of the first and second heat exchange passages, wherein the header is welded to the heat exchanger core along a header-to-core joint. The heat exchanger core has a groove extending at least partly along the header-to-core joint, wherein a cross-section of the groove has a rounded shape with a depth of the groove larger than half the width of the groove. The disclosure also concerns a method for manufacturing such a heat exchanger.
    Type: Application
    Filed: December 21, 2017
    Publication date: December 5, 2019
    Applicant: ALFA LAVAL CORPORATE AB
    Inventor: Konrad ANIKIEL
  • Patent number: 10493468
    Abstract: A centrifugal separator for cleaning a gas containing liquid impurities includes a stationary casing including a surrounding sidewall, a first end wall and a second end wall which enclose a space through which a gas flow is permitted. The space includes an upper separation chamber and a lower discharge chamber. The separator further includes an inlet extending through the stationary casing and permitting supply of the gas to be cleaned to the separation chamber, a rotating member including a stack of separation discs and being arranged to rotate around an axis of rotation, wherein the stack of separation discs is arranged in the separation chamber and a drive member for rotating the rotating member.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: December 3, 2019
    Assignee: ALFA LAVAL CORPORATE AB
    Inventor: Mats-Örjan Pogén
  • Publication number: 20190358651
    Abstract: A centrifugal separator for separation of at least two components of a fluid mixture which are of different densities. The centrifugal separator includes a rotor rotatable about an axis of rotation and including a rotor wall which surrounds an inner space with a separating chamber within the rotor. The rotor wall is divided into an upper bowl hood, with an end portion, and a lower bowl body which are dismountably attached to each other. The centrifugal separator further includes an inlet for feeding the fluid mixture into the rotor's separating chamber, at least one outlet for discharging out from the rotor component separated from the fluid mixture, and a rotor shaft attached to the rotor and drivably connected to a motor for rotation of the rotor about the axis of rotation. The bowl hood and the bowl body are dismountably attached to each other by an annular flange portion of the bowl hood resting on a stop flange of the bowl body.
    Type: Application
    Filed: June 8, 2017
    Publication date: November 28, 2019
    Applicant: ALFA LAVAL CORPORATE AB
    Inventor: Anders EKSTRÖM
  • Patent number: 10478746
    Abstract: The present invention concerns a process for producing a solid product and a liquid product, comprising the steps of a. heating by direct steam injection a finely divided starting material, b. separating the heated starting material in the solid product and an aqueous liquid, c. heating and pressurizing the aqueous liquid, and d. reducing the pressure of the aqueous liquid thereby generating steam and the liquid product, wherein the steam generated in step d is returned to step a for injection into the finely divided starting material. The process suggests a solution for extracting the additional water appearing in the aqueous liquid due to condensed steam.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: November 19, 2019
    Assignee: ALFA LAVAL CORPORATE AB
    Inventor: Niels Aunbirk
  • Publication number: 20190346220
    Abstract: A plate heat exchanger includes a number of titanium plates arranged in a plate package. Every second plate is a titanium plate that has been cladded with a melting depressant foil on each side of the plate, and at least every second titanium plate has a corrugated pattern, such that tops and bottoms are formed in the plate. The cladded titanium plates are stacked on the corrugated titanium plates, so as to form the plate package of titanium plates. Contact areas are formed between adjacent titanium plates in the plate package. The plate package of titanium plates has been heated, such that the melting depressant foil has acted as a melting depressant for the titanium in the cladded titanium plates and caused surface layers of the cladded titanium plates to melt and flow to the contact areas between adjacent titanium plates and form joints at the contact areas between adjacent titanium plates when the melted titanium has been allowed to solidify.
    Type: Application
    Filed: September 11, 2017
    Publication date: November 14, 2019
    Applicant: ALFA LAVAL CORPORATE AB
    Inventors: Per SJÖDIN, Mats NILSSON
  • Patent number: 10471440
    Abstract: A centrifugal separator and a method for separation of particles from a gas stream is disclosed. The separator includes a frame, a gas inlet and a gas outlet. A centrifugal rotor is arranged to be rotatable in the frame around a rotational axis and includes a separating member. A central gas chamber in the rotor communicates with a radially inner portion of the separating member and the gas outlet. A space surrounding the rotor communicates with a radially outer portion of the separating member and the gas inlet. A drive provides rotation of the centrifugal rotor for separating particles from the gas stream being conducted from the space surrounding the rotor, through the separation member and towards the central gas chamber. A ring-formed sealing arranged between and in sealing contact with the first frame portion and the centrifugal rotor.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: November 12, 2019
    Assignee: ALFA LAVAL CORPORATE AB
    Inventors: Thomas Eliasson, Per Fonser
  • Publication number: 20190339016
    Abstract: A plate package for a heat exchanger device includes a plurality of heat exchanger plates of a first type and a plurality of heat exchanger plates of a second type. At least the heat exchanger plates of the first type include, along at least a section of the opposing side portions, a draining channel flange. The draining channel flanges are oriented in one and the same direction such that a draining channel flange of a first heat exchanger plate of the first type abuts or overlaps a draining channel flange of a subsequent heat exchanger plate. The draining channel flanges form outer walls to the outer draining portions thereby transforming the outer draining portions into draining channels. A method of using such plate package in a heat exchanger device and also a heat exchanger device as such are also disclosed.
    Type: Application
    Filed: February 15, 2018
    Publication date: November 7, 2019
    Applicant: ALFA LAVAL CORPORATE AB
    Inventors: Rolf CHRISTENSEN, Anders SKOGLÖSA